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13962013 = 131074001
BaseRepresentation
bin110101010000…
…101100011101
3222021100021121
4311100230131
512033241023
61215130541
7226450402
oct65205435
928240247
1013962013
11797695a
124813a51
132b7b060
141bd62a9
15135bd5d
hexd50b1d

13962013 has 4 divisors (see below), whose sum is σ = 15036028. Its totient is φ = 12888000.

The previous prime is 13961993. The next prime is 13962023. The reversal of 13962013 is 31026931.

13962013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1159929 + 12802084 = 1077^2 + 3578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13962013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13962023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536988 + ... + 537013.

It is an arithmetic number, because the mean of its divisors is an integer number (3759007).

Almost surely, 213962013 is an apocalyptic number.

13962013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13962013 is a deficient number, since it is larger than the sum of its proper divisors (1074015).

13962013 is a wasteful number, since it uses less digits than its factorization.

13962013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074014.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 13962013 is about 3736.5777122924. The cubic root of 13962013 is about 240.7960430710.

Adding to 13962013 its reverse (31026931), we get a palindrome (44988944).

The spelling of 13962013 in words is "thirteen million, nine hundred sixty-two thousand, thirteen".

Divisors: 1 13 1074001 13962013